<?xml version="1.0" encoding="utf-8"?>
<key id="cbb8a41a-9ca4-4a79-a1de-d39c4e307d75" version="1"><creationDate>2016-07-23T10:09:49.1888876Z</creationDate><activationDate>2016-07-23T10:09:49.1388521Z</activationDate><expirationDate>2116-10-21T10:09:49.1388521Z</expirationDate><descriptor deserializerType="Microsoft.AspNetCore.DataProtection.AuthenticatedEncryption.ConfigurationModel.AuthenticatedEncryptorDescriptorDeserializer, Microsoft.AspNetCore.DataProtection, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60"><descriptor><encryption algorithm="AES_256_CBC" /><validation algorithm="HMACSHA256" /><masterKey p4:requiresEncryption="true" xmlns:p4="http://schemas.asp.net/2015/03/dataProtection"><!-- Warning: the key below is in an unencrypted form. --><value>WYgZNh/3dOKRYJ1OAhVqs56pWPMHei15Uj44DPLWbYUiCpNVEBwqDfYAUq/4jBKYrNoUbaRkGY5o/NZ6a2NTwA==</value></masterKey></descriptor></descriptor>
</key>

    public class CustomFileXmlRepository : IXmlRepository{private readonly string filePath = @"C:\keys\key.xml";public virtual IReadOnlyCollection<XElement> GetAllElements(){return GetAllElementsCore().ToList().AsReadOnly();}private IEnumerable<XElement> GetAllElementsCore(){yield return XElement.Load(filePath);}public virtual void StoreElement(XElement element, string friendlyName){if (element == null){throw new ArgumentNullException(nameof(element));}StoreElementCore(element, friendlyName);}private void StoreElementCore(XElement element, string filename){}}

    public class Startup{public Startup(IHostingEnvironment env){var builder = new ConfigurationBuilder().SetBasePath(env.ContentRootPath).AddJsonFile("appsettings.json", optional: true, reloadOnChange: true).AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true).AddEnvironmentVariables();Configuration = builder.Build();}public IConfigurationRoot Configuration { get; }// This method gets called by the runtime. Use this method to add services to the container.public void ConfigureServices(IServiceCollection services){services.AddSingleton<IXmlRepository, CustomFileXmlRepository>();services.AddDataProtection(configure =>{configure.ApplicationDiscriminator = "Htw.Web";});// Add framework services.
            services.AddMvc();}// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory){loggerFactory.AddConsole(Configuration.GetSection("Logging"));loggerFactory.AddDebug();if (env.IsDevelopment()){app.UseDeveloperExceptionPage();app.UseBrowserLink();}else{app.UseExceptionHandler("/Home/Error");}app.UseStaticFiles();app.UseCookieAuthentication(new CookieAuthenticationOptions(){AuthenticationScheme = CookieAuthenticationDefaults.AuthenticationScheme,LoginPath = new PathString("/Account/Unauthorized/"),AccessDeniedPath = new PathString("/Account/Forbidden/"),AutomaticAuthenticate = true,AutomaticChallenge = false,CookieHttpOnly = true,CookieName = "MyCookie",ExpireTimeSpan = TimeSpan.FromHours(2),
#if !DEBUGCookieDomain="h.cn",
#endifDataProtectionProvider = null});app.UseMvc(routes =>{routes.MapRoute(name: "default",template: "{controller=Home}/{action=Index}/{id?}");});}}

        public async void Login(){if (!HttpContext.User.Identities.Any(identity => identity.IsAuthenticated)){var user = new ClaimsPrincipal(new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, "bob") }, CookieAuthenticationDefaults.AuthenticationScheme));await HttpContext.Authentication.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, user);HttpContext.Response.ContentType = "text/plain";await HttpContext.Response.WriteAsync("Hello First timer");}else{HttpContext.Response.ContentType = "text/plain";await HttpContext.Response.WriteAsync("Hello old timer");}}